1. Place it stably and is suitable for the air outlets of various cars. 2. Easy to operate, plug and play, the clamp is tight and has no abnormal sound, and does not damage the air outlet 3. Made of resin material, can be easily installed on the car air outlet 4. Decorate the car, exquisite workmanship, sturdy and durable 5. Bring aromatherapy tablets to freshen the air in the car 6. Weight: large size 14g; small size 12g 7. Size: large size 4.7 cm in diameter; small size 3.4 cm in diameter